2099217 has 8 divisors (see below), whose sum is σ = 2864224. Its totient is φ = 1366848.

The previous prime is 2099213. The next prime is 2099219. The reversal of 2099217 is 7129902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2099217 - 2² = 2099213 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2099213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8008 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (358028).

2^2099217 is an apocalyptic number.

It is an amenable number.

2099217 is a deficient number, since it is larger than the sum of its proper divisors (765007).

2099217 is a wasteful number, since it uses less digits than its factorization.

2099217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16319.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 2099217 is about 1448.8674887649. The cubic root of 2099217 is about 128.0419987506.

The spelling of 2099217 in words is "two million, ninety-nine thousand, two hundred seventeen".